[HTC Inspire 4G] symonc:
It's about 1/3 of the way down Post #1. Here's a copy/paste

Welcome to MIUI

Follow these instructions to the letter and you will have very few issues if any. I have flashed this puppy and tested it over eight times this morning and this works. All you smart people who see something I've missed - pm me and I'll get on it.

DO NOT ENABLE WIFI ON FIRST BOOT

Install Titanium Backup from Market

Middle toggle "Backup/Restore"

Press Menu

Choose Batch

RUN Backup all user apps ( If you are currently on MIUI and you ARE NOT EXPERIENCING SYSTEM ISSUES you may backup "user apps and system data" - this will restore your screen settings and wifi networks, etc etc.)

Now that all of your apps are backed up - the world won't end.

DOWNLOAD MIUI 1.4.8 v3 HERE and remember where you saved it to. Most likely it is in your Download folder on sd card.

MD5: B7F53A06A501B5D80F424F8456559DBD

Reboot to Clockworkmod Recovery You can install "Quick Boot" from market or the old fashioned way: Turn off your phone. Hold volume down and press power button. Let go of power button when it starts -- let it do it's little thing and then choose recovery

In Clockwork Mod

Select mounts and storage. We are going to format the following:

-format boot

-format system

-format data

-format cache

Once you have completed all of those - choose ** Go Back ** from the bottom

Select install zip from sdcard

Select choose zip from sdcard

Find where you have saved the rom: miui-ace-en-1.4.8_2.3_v.3.zip

Select and flash the rom

Reboot your phone. The first reboot will take a little longer than normal.

DO NOT ENABLE WIFI ON FIRST BOOT

First Boot Instructions:

Find the Downloads icon and click on it. Press menu and enable download from network data

Open Market and enter your credentials

Install Titanium Backup

Open Titanium Backup - Middle toggle Backup/Restore

Press Menu - select Batch

Run restore apps with data

If you have the paid version of Titanium Backup this is a one click situation. If you have the free version of Titanium Backup then you simply have to verify the install of each app to be restored.

DO NOT ENABLE WIFI ON FIRST BOOT

Once apps are restored - Reboot to recovery

Flash TurboniumX's audio fix

Reboot

Second Boot Instructions:

Once you are booted back up you may enable WIFI and join your WIFI network, etc. Enabling wifi on first boot will bootloop.

GETTING GPS TO WORK GREAT

Download GPS STATUS from Market and don't open it.

Go to: Settings - Personal - My Location

Enable: Use Wireless Networks (Duh! - we've been doing this)

Click: GPS configuration and enter the following

For NTP server address: north-america.pool.ntp.org

For SUPL server address: supl.google.com

For SUPL port: 7276

Click OK

Now go outside where you have a clear view of the sky in all directions.

Open GPS STATUS

Click Menu

Choose Tools

Click Manage A-GPS state

Click Reset

Let it do it's thing until where you see "Fix/Sats" - gets a fix on anywhere from 4-9 satellites and it will display your Latitude and Longitude.

Bam! You're done. Open Maps and enjoy the goodness.

If you don't get a very quick lock in Maps, go to: Settings - Programs Tab - Manage Applications - All - Maps - Force Close - Clear Cache - Clear Data

Open Maps again and let it do it's thing. It will take a little longer to lock the first time.